Glass-flattening apparatus



G. H. HAHM. emss LANEMNG APPARATUS.

Anmcmw HLED MR. 15 W19. *7 1,91 fatented Feb. 24, 1920.

SHEEISSHEET I.

H. HAHM.

"GLAss FLATTENING APPARATUS.

APPLICATION FILED APR..15,1 X919.

who z B SHEIETSAHEET s.

Patented Feb 1.920.

I am. HAHM. GLASSFL'AJ-IE NING APPARATUS. APPLICATION HLED APR. 15, m9.

Patented Feb. 24, 1920.

6 SHEETS-SHEET 4 a. H, HAHM.

, "'GFASS FLATTENING APPARATUS.

' APPLICATION FILED APR.15. 1919.

Patented Feb.24,1920.

6 SHEETS-SHEET 5.

anal/34a G; H. HAHM.

GLASS FLATTENING APPARATUS.

APPLICATION FSLED APR-15.1919.

Patented Feb. 24,1920.

6 SHEETS-SHEET 6.

nwntoz UNITED STATES PATENT OFFICE.

GEORGE H. HAHM, OF KANE, PENNSYLVANIA.

GLASS-FLATTENING; APPARATUS.

Specification of Letters Patent. Patented Feb, 241, 1920.

Application filed April 15, 1919. Serial-N0. 290,213.

sheets of glass in quick succession, the means for accomplishing this result at the same time being relatively simple... In the accompanying drawings Figure 1 is a plan view of the preferred embodiment of the invention, the end por-' tions of the apparatus being broken away.

Fig. 2 is a side elevation of the same,

Fig. 3 is a cross sectional view on the line 3-3 of Fig. 1.

Fig. 4 is a similar view on the line 4-4 of Fig. 1.

Fig. 5 is a horizontal sectional view on the line 5-5 of Fig. 4.

Fig. 6 is a detail sectional view on the line 6-6 of Fig. 1.

Fig. 7 is a View in side elevation of the cable driving means on an enlarged scale.

Fig. 8 is a plan view of the same.

Fig. 9 is a detail sectional view through one of the cable supports, and

Fig. 10 is a view in elevation at right anglesto Fig. 9. I

Similar reference numerals designate corresponding parts in all the figures of the drawings.

In the embodiment discli-sed, an elongated chamber structure is empl yed, one end portion 11 constituting a heating chamber, the other end portion 12 being a cooling chamber. It will be noted by reference to Fig. 2 that the cooling chamber 12 is of greater height than the heating chamber 11. These chambers are made of suitable refractory or heat-insulating material, and the top wall 13 is provided with a longitudinal slot 14 throughout its length.

Over this said slot is supported one leg or stretch of an endless cable 15- that passes around suitable sheaves 16. The supporting means for the cable preferably consists of a series of arched standards 17 mounted, as shown, at 18 on the top 13 and bridging the slot 14. Each of the standards carries a set of oppositely disposed cones-haped rollers 19, on which rests the said cable, as clearly illustrated in detail is Fig. 9.

Carried by the said cable is a series of hanger rods 20 that extend downwardlythrough the slot 14 and are provided with glass sheet gripping devices. Thus as illustrated these devices each consists of a pair of arms 21' pivotally connected between their ends as shown at 22, the upper ends having eyes 23 through which is passed a chain 24 that is engaged with thehooked lower end 25 of the hanger rod 20. y The lower ends of the arms 21 are formed with-substantially horizontal grippingjaws 26. i

The cable is driven by any suitable means.

Thus, as shown in detail in Figs. 7 and 8 a there is preferably provided a series of horizontally disposed toothed wheels 27 having beveled gears 28 that are in mesh witlrbeveled pinions 29 carried by shafts 30 ]our-- naled 2113016 theseavheels. The shafts 30 are connected by a sprocket chain 31 passing around sprocket wheels on said shafts, and one of the shafts furthermore has a sprocket wheel 33 engaged by a sprocket chain 34. The latter chain may be driven by any suitable source, as for example, a motor 35.

For the purpose of heating the chamber 11-, a plurality OfabllYIlBlS 36 extend into the lower portion of the same, these burners being of any desired or well known form, and

located within the chamber in the ath of the flames from said burners, is 9. ba e comprising a longitudlnal wall 37 with a transverse cap 38 placed thereupon.

At the juncture between the chambers 11 and 12 is placed flattening apparatus, which is preferably constructed as follows: An upright flattening slab 39 is employed, the inner face 40 of which constitutes the flattening surface. and the sheets of glass are brought alongside the same by the cable, but during their movement are held in spaced relation to such surface by a guard or guide in the form of a plate 41 pivotally mounted at the top of the slab, as shown at 42. This plate is adapted to be swung. from a hor'izontal to a substantially vertical position by any suitable means. For example, the said plate may have a. gear segment 43 engaged v a pinion 44 carried by an operating shaft 45. the said shaft being actuated by any suitable means, not shown. When the plate 41 is in its horizontal position the sheet grippinghdevices will ride ainst the inner edge of t e same, and thus old the sheets away from the flattening surface. When, however, the plate is swung upwardly the sheet will then be brought directly against the face 40.

, Endless cable members, preferably in the form of sprocket chains 46 have vertical stretches 47 disposed adjacent to the flattening surface, these "cables or chains 46 passing around suitable sprocket wheels 48, and

. mounted on said chains or cables are standards 49 carrying flattening bars 50 preferof wood and having their advanced ably edges beveled-as shown at 51. The cables or chains are driven by any suitablemeans,

as for example, a motor 52 geared as shown cause them 'to st'rai hten out by ravity due to their susperidec condition.

iach sheet is then brought opposite to the flattening surfacdefl), w ereupon the guard 41is swung upwardly an'd the sheet thus moves to a position against the said surface. Thereupon the motor 52 is thrown into operation and the bars 50 operating against the said sheet Wlll flatten the same against the surface.

When properly flattened the'guard 41 is again moved downwardly and the cable once more thrown into operation, carrying the finished sheet into the cooling bringing another sheet into position to be acted upon. Thus, it will be seen that the sheets are uickl and successively heated, flattened an coo ed.

From the foregoing, it is thought that the construction, operation and many advantagesofthehercindescribed invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of constrictlon, may be resorted to without departin from the. spirit or sacrificing any of the It vantages of the invention.

' Having thus fully described my invention. what I claim as new, and desire to secure by Letters Patent, is

1. In apparatus of the character-set forth,

the combination with heating means, of

means for'simultaneously suspending a pluand carrying them in.

rality of glass sheets suspended position successively throu h the heating means, and mechanism for atten ing the sheets while heated and insuspendcd,,posit1on.

chamber and 'iratus when a sheet 2. In apparatus of the character set forth, the combination with a heating chamber, of means for heatin the same, mechanism for flattening said s eets while so suspended, 'and' means for simultaneously carrying a plurality. of suspended glass sheets and maintaining certain ofthe same in the heating chamber while the flattening mechanism is operating on one of said suspended sheets.

3..In apparatus of the character set forth, the combination with an chamber, of movable meanslocatedabove the same for suspending therein a plurality of sheets of lassfa'nd means operating in the chamber. or flattening one of such sheets so while so she ended and while the others are beinglheatedi I y 4. n apparatus of the character set forth. t e combination with an elongated heating 0 amber adapted to simultaneously hold a. V

pluralityof sheets .of'g'lass, ofan endless .cable located overthe same, means for moving the cable, hangers carried by the cable for simultaneously carrying a lplurality of suspended sheets of glass in t ail mechanism past which the sheets of g ass are carried y the cable for flattening such suspended sheets ofglass successively.

5. In apparatus of the character set forth,

the combination with an elongated chamber having a/tpp rovided with a longitudinal slot, of an en less cable operating over the top, means for moving the 'cable, hangers carried y the cable, and depending through the slot, hangers within the chamber for suspending glass sheets therefrom, the suspended sheets for flattening the same, and means for heating the glass sheets progressively prior to their association with the flattening apparatus and as they are advanced tow rd the same. I I

'6. In ap aratus of the character set forth, I the combination with a substantially upright flattening apparatus, of means for simultaneously conveyin a lurality of i i'om th glass sheets toward and e same and effecting their heating during their movenlent toward said flatteninghpparatus, and means for operating the flattening ap a 116 is in OPBIQlZlVG POSItIOII with respect thereto.

In apparatus of the char ter set forth,

the combination with an upn ht flattening surface, of means for locating glass sheets 12o thereagainst, and means movable against such sheets to flatten the same.

8. In apparatus of the character set forth, the, combination with anupright flattening surface, of means for locating glass sheets thereagainst, a flattening device, and meansv for moving thesame over the glass sheets when against the sur ace.

9. In apparatus of hecharacter set forth,

the combination with an upright flattening 1)t o I elongated heating e chamber, 90

gripping devices carried bythe oo means operating on 4 surface, of means for locating glass sheets thereagainst, a plurality of flattening devices, and means for moving the same successively over the glass sheets when against the surface;

10. In apparatus of the character set forth, the combination with n upright flattening surface, of means for locating glass sheets thereagainst, endless cable member operating adjacent to the surface, and flattening bars carried by the cables and moved thereby against the glass sheet when placed against the surface.

11; In apparatus of the character set forth, the combination with a substantially upright flattening surface, of means for carrying suspended lass sheets alongside the same, and means or flattening the suspended glass sheets against such surface.

12. In apparatus of the character set forth, the combination with'a substantially upright flattening surface, of means for car..-

rying suspended glass sheets alongside same in spaced securing the lateral movement of such sheets to a position against the surface and means movable over the sheets for flattening the suspended glass sheets against such surface.

13. Inapparatus of the character set forth, the combination with a substantially upright flattening surface, of a carrying device for moving suspended sheets to a position alongside the'surface in spaced relation thereto, a guard for normally holding the sheets in such spaced relation, said guard being movable to a position to permit the sheets being placed against the surface a flattening means that operate over the sli when against the surface to flatten the sheets against said surface.

H. In apparatus of the character set forth, the combination with an elongated heating chamber, of a cooling chamber of greater height communicating means for transporting glass sheets in suspended position through the chambers, and means at the juncture of the two for flattening said sheets.

'15. In apparatus of the character set relation thereto, means 01" eets therewith,

I in the presence of chambers forth, the combination with an elongated heating chamber, of means for carrying sheets in suspended relation throu 11 said chamber, burners for injecting eating flames into the lower (portion of said chamber, a bafile interpose between the burners and the sheets carried through the chamber, a cooling chamber communicating with the heating chamber, and means for flattening the glass located at the juncture of the two chambe 16. In apparatus of the character set forth, the combination with an elongated chamber one end portion of which is ofgrenter height than th o h r d p ti n, said chamber being .rcvid'ed wi h a Ongitudinal slot, of a le operat ng over the chambenhangers carried by th a le and extending through the slot, glass sheet gripping devices mounted in the l w r ends of the hangers for carrying lass sheets through the chamber in suspen ed position,

means for movinfgithe cable, means for pro-.

jecting heating mes into the smaller end portion 91. the chamber, an upri ht flattenin slab located substantially at t e juncture o the chambers, means for normally lnairn taining the sheets in spaced re to Said slab, a

sheets to engage the 51 b, endless ca p ating adjacent to the sl b, and fl ening bars carried by said cable and co'ciperating the sheets therewith said slab to flatten against.

17. In apparatus of the character set forth, the combination with means for flattaping while in suspended relation, of means :for advancing a plurality of suspended sheets simultaneeusly to the flattening means, and mechanism for p gr i ly heating the sheets during such advancement and prior to theiriassocietien i h fla tening. means.

In testimony whereof I ail x my signature two witnesses. GEORGE H. HAHM. Witnesses: D. V. CRossMmn,

PEARLE Jones.

said means being mevabl t permit 

